The following table provides summary statistics for permanent job vacancies advertised in Essex with a requirement for Refactoring skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Refactoring over the 3 months to 27 April 2017 with a comparison to the same period in the previous 2 years.

Refactoring
3 months to
27 Apr 2017
Same period 2016 Same period 2015
Rank 89 87 102
Rank change year-on-year -2 +15  
Permanent jobs citing Refactoring 5 8 3
As % of all permanent IT jobs advertised in Essex 0.50% 0.80% 0.23%
As % of the Processes & Methodologies category 0.61% 0.93% 0.26%
Number of salaries quoted 5 7 3
Median salary £40,000 £65,000 £55,000
Median salary % change year-on-year -38.46% +18.18%  
UK excluding London median salary £40,500 £42,500 £41,500
% change year-on-year -4.70% +2.40%  

Refactoring is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Essex with a requirement for process and methodology skills.

Process & Methodology Skills
Essex
Permanent job vacancies with a requirement for process and methodology skills 822 860 1144
As % of all permanent IT job vacancies advertised in Essex 81.79% 86.00% 86.73%
Number of salaries quoted 645 658 934
Median salary £45,000 £45,000 £45,000
90% offered a salary of more than £32,500 £27,500 £30,000
10% offered a salary of more than £70,000 £65,000 £70,000
UK excluding London median salary £45,000 £45,000 £44,000
% change year-on-year - +2.27%  

Refactoring
Job Vacancy Trend in Essex

The job posting trend of jobs advertised in Essex citing Refactoring as a proportion of all permanent or contract IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for Refactoring in Essex

Refactoring
Salary Trend in Essex

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Refactoring in Essex.

Salary trend for Refactoring in Essex

For the 6 months to 27 April 2017, IT jobs citing Refactoring also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Essex region with a requirement for Refactoring.

1 8 (100.00%) HTML
1 8 (100.00%) SQL
2 7 (87.50%) FileMaker
2 7 (87.50%) Java
2 7 (87.50%) PHP
2 7 (87.50%) MySQL
2 7 (87.50%) SQL Server
2 7 (87.50%) Unit Testing
2 7 (87.50%) User Acceptance Testing
3 5 (62.50%) Usability Testing
3 5 (62.50%) SDLC
3 5 (62.50%) Data Modelling
3 5 (62.50%) System Testing
4 2 (25.00%) Degree
4 2 (25.00%) Mathematics
4 2 (25.00%) Workflow
4 2 (25.00%) Agile Software Development
4 2 (25.00%) Linux
4 2 (25.00%) E-Commerce
4 2 (25.00%) Algorithms
5 1 (12.50%) T-SQL
5 1 (12.50%) .NET
5 1 (12.50%) MVC
5 1 (12.50%) ASP.NET
5 1 (12.50%) CSS
5 1 (12.50%) XML
5 1 (12.50%) C#
5 1 (12.50%) JavaScript
5 1 (12.50%) TDD
5 1 (12.50%) NUnit

Refactoring
Co-occurring IT Skills in Essex by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Database & Business Intelligence
1 7 (87.50%) FileMaker
1 7 (87.50%) MySQL
1 7 (87.50%) SQL Server
Development Applications
1 1 (12.50%) Moq
1 1 (12.50%) NUnit
1 1 (12.50%) Team Foundation Server
General
1 1 (12.50%) Finance
Job Titles
1 8 (100.00%) Developer
2 7 (87.50%) Software Developer
3 2 (25.00%) FileMaker Developer
4 1 (12.50%) .NET Developer
4 1 (12.50%) .NET Web Developer
4 1 (12.50%) ASP.NET Developer
4 1 (12.50%) C# .NET Developer
4 1 (12.50%) C# ASP.NET Developer
4 1 (12.50%) C# Developer
4 1 (12.50%) C# Web Developer
4 1 (12.50%) Web Developer
Libraries, Frameworks & Software Standards
1 8 (100.00%) HTML
2 1 (12.50%) .NET
2 1 (12.50%) .NET Framework
2 1 (12.50%) Ajax
2 1 (12.50%) AngularJS
2 1 (12.50%) ASP.NET
2 1 (12.50%) CSS
2 1 (12.50%) Entity Framework
2 1 (12.50%) jQuery
2 1 (12.50%) WCF
2 1 (12.50%) XML
Miscellaneous
1 2 (25.00%) Algorithms
Operating Systems
1 2 (25.00%) Linux
Processes & Methodologies
1 7 (87.50%) Unit Testing
1 7 (87.50%) User Acceptance Testing
2 5 (62.50%) Data Modelling
2 5 (62.50%) SDLC
2 5 (62.50%) System Testing
2 5 (62.50%) Usability Testing
3 2 (25.00%) Agile Software Development
3 2 (25.00%) E-Commerce
3 2 (25.00%) Mathematics
3 2 (25.00%) Workflow
4 1 (12.50%) MVC
4 1 (12.50%) TDD
4 1 (12.50%) Web Development
Programming Languages
1 8 (100.00%) SQL
2 7 (87.50%) Java
2 7 (87.50%) PHP
3 1 (12.50%) C#
3 1 (12.50%) JavaScript
3 1 (12.50%) T-SQL
Qualifications
1 2 (25.00%) Degree